Premium Rubber Stoppers for Laboratory Bottles - 14mm, 19mm, 20mm, 50 & 100 Pack Reverse Rubber Caps(No.19 100pcs)

Scope of application: Can be used for laboratory standard bottles, laboratory reagent bottles, etcSize:14 #: Plug diameter: 14mm19 #: Plug diameter: 19mmAttention: Please allow for small length deviations caused by human measurementHighly concerned about chemicals: noneOrigin: Chinese MainlandCategory: Flask

• Versatile Compatibility: Ideal for standard laboratory bottles and reagent bottles, ensuring a secure seal for various applications.
• Multiple : Choose from 14mm, 19mm, and 20mm options, with packs of 50 or 100 to suit your needs.
• Durable Material: Made from butyl rubber, these stoppers provide excellent resistance to chemicals and ensure long-lasting use.
• Easy to Use: devised as reverse rubber plugs for effortless insertion and removal, making your laboratory work more efficient.
• Precision Measurement: Each stopper is crafted with attention to detail, allowing for slight length deviations due to manual measurement.